Multiple-spindle drill.



' W. E. ELLIOTT. MULTIP E SPINDLB DRi-fli5i-. APPLICATION FILED JULY 15,1912.

Patented July 14, 1914.

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W. ELLIOTT. MULTIPLE 'SPINDLE DRILL. APPLICATION PLLED JULY15,1912.

Patented July 14; 191% 4 SHEETS-SHEET 2.-

' anon Wow mnmm mum W. E. ELLIOTT. MULTIPLE SPINDLB DRILL. APPLICITION FILED JULY 15, 1912.

- 1,1 03, 1 Patented July.14, 19-14 4 snng'rs-snnn'r I l 6 Swim W; B. ELLIOTT.

MULTIPLE SPINDLE DRILL. APPLICATION FILED JULY 15', 1912'.

1,103, 1 8.0. Patented July 14, 1914.

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EIUIITIPIIE SPIImLE fiRKLL.

Specification of Letters Patent. Patented Application filed m 15.1912." Serial no. mm.

2 To all whom it may concern:

Be it known-that I, lVILLIAM E. ELLIOIT,

a citizen of the United Statesv of America, residing at Grand Rapids, in the county of V I Kent and State of lVIiclngan have invented My invention. relates to improvements in multiple, spindle drills, and its object, isto provide improved means for supporting and adjusting the spindles. and to provide the device with various-new and useful features hereinafter morefully described and particularly pointedout in the 'ciaims, reference being had to the accompanying drawings. in which: Q 2 2 Figure 1 is a side elevation of. a portion of a multiple spindle drill embodying my invention; Fig. 2 a front elevation of the same with a portion broken away to show the construction; Fig. 3 is a detail showing' an inverted plan v ew of a portion of the same; Fig. 4: is an enlarged vertical section of the upper part of the device containing the driving mechan sm for the spindles; F 1g. 5 IS'ZI horizontal section of the same with a portion below broken away; Fig! 6 is an enlarged detail in elevation of the levers for ad ust ng the pinions; Fig. 4. is an enlarged detail in vertical section of a part of the pinion adjusting means; 8 a plan view of one of the S]31I1dl.(3ll'111$; F 1g.

9 a detached. side elevation of the same with portions broken away: Fig. 10 a horizontal section of one end io-f the same: Fig. 11 a vertical section oirr t-lie line 1111 of Fig. 9: Fig. 12 the same on the line 1212 of Fig. 9: and Fig. 13 an enlarged section-al detail of one of the bolts 8 and parts connected thereby.

Like numbers refer to like parts in all of the figures. 1

1 represent any suitable frame provided with a work support. and suitable driving pulleys (not shown): 2 is a gear case arranged in the form of an overhanging head near the top of the frame i 15 are flanges embracing ways 13 on the frame. secured thereto by clamping strips 14. and supporting the gear case and frame. This gear case is preferably cylindrical and provided with a square base beneath which is supported a rectangular-frame 10 to support the spindle holders. .In-the bottom of the frame are T-slots 9 to receive bolts 8 to adjustably hold various spindle. supports .7 each of'which comprises an elongated body,

illustrated more fullyein F igs. 8*to 12 111-.

elusive, each support being; provided with a longitudinal slotto receive the bolt. One

of these supports is provided for each drill spindle and each independently adjusted upon the frame 4-, longitudinally on the bolt h and axially about the same, thus providing for an independent holding and adjustment of each separate spindle. These respective drill spindles G are connected ,to the respective driving shafts 16 by means'of telescoping connecting rods 11 havinguniversal joints at their respective ends one connecting one end of the rod to a drill spindle and the other to the respective driving shaft. Each drill spindle 6 is journaled in a bearing 28 provided with a dove-tail rib engaging a dove-tail groove in the end ofthe support 7 whereby the bearing may be adjusted verti} cally as occasion requires: for which purpose the rib is provided with a rack 29 engaged by a pinion-cut in the end of a shaft 30 journale'd in the liolden- To securethis bearing rigidly i'n adjusted position. itis' provided with oppositely inclined shoulders engaging.opposingshoulderson the 'end of the support 7 and drawn into rigid engagenienttherewith by means of bolts 31 extending longitudinally through the support and into 'a dove-tail block 32in a recess in the support in which the rib is adjustable. By slacking these bolts the bearing can be adjusted and by tightening the same it is rigidly held on the end of the support'in' adjusted position.

3 is the main drivlng shaft ournaled 111.

the axis of the case 2 and driven by a pulley at on the upper end thereof engaged by a belt 5 operated in the usual way. driving shaft is provided with a middle gear 2-l of double width of face and gears 22 and 23 near the respective ends. On each shaft 16 are splined two pinions the smaller pinion '1? adaJtQd to enga e the middle ear Ql t D C for the high speed, and the larger pinion 1? adapted to engage one of the end gears 22 or 23 as the case may be. for the lower speed. 'lo permit a large munbcr of the driving shafts in a given space. the gears thereon are arranged in alternate relation whereby on each alternate shaft the gears This main engage the respective endgear and one part .-pinions are so spaced apart vertically that;

the distance. between the middle-gear 24- and. v the end gear 2201' 23 is suflicien't so that the' of thefteethadjacent thereto of the middle gear. As shown in Fig. 4, one shaft 16 is shown with the small qgear23' on one shaft. engaged by a pinion 17 forsl'ow. speed, and a pinion 17? on another shaft engaging, a gear 24 for high speed. Thesegears and pinion's on. any shaft 16 when in m ld- 05ition wi'll .be out of mesh with" any o the a and when shifted fromthis mid-position one direction will engage the small pinion gears on the shaft 3 and will not be driven,

Withthe middle gear, and .whenfshifted in the other direction will engage thev large p nion with one of theend gears onthedriv ing shaft. Theshifting-of the-se'pinions on slidable shifting rods '19 parallel with the.

' mounted thereon engaging a groove in the the shafts 16 is accomplished by means of respective shaft .16 and a forked arm 18 hub of the pinions on the adjacent shaft 16'.

Each' rod is provided with a rack 20; engaged by a pinion out in a rock shaft 21 provided with a 'crank'25. To shift the same,

to engage the pinions with the gears, for

slow speed, fast speed; and out ofaction, each crank is providedv with a yield'ablestop 27 I (see Fig. 7 to engage recesses 26 and retain "the crank in the three suitable positions. I have shown six spindles onlyb'ut obviously thenumber may be increased or decreased as preferred v within wide limits. A great variety f adjustments are possible by means of this device the spindles being. independ-- ently adjustable each spindle being verti and also carried bya respective support independently adjustable all directions in a horizontal plane.

or -adjusted out of action independent'of 7 each ofthe other spindles.

From the foregoingdescription the operatlon of'the device can be-readily'unden stood without further explanation, it being [understood that the work support below the spindle is adapted topbe fed upward as the drills enter the work feeding the drills dle machines of this'class'.

What I claim is:

1. A multiple spindle drill; comprising a frame having a E -slot to receive a bolt, av

spindle support having a longitudinal slot simultaneously as is usual in multiple spinto receive the' bolt whereby the support is."

longitudinally and rotatably adjustable on the frame, a bearing. vertically adjustable- ;on one-end. of the support, a block horizon- -tally adjustable 'in the support and engaging the bearing to hold the same adjusted, a

drill spindle journaled in' the bearing, and

means for rotating the spindle.

2. A m ultiple spindle drill, comprising a frame,j a spindle support adjustably attached to th e'vframe, a block adjustable in th'eend of the support, screws to adjust the block, a bearing arranged transversely of the'end'of the support and engaging the ably engaging dove-tail grooves in the block and support.

a A multiple spindle drill, comprising a v spindle supportconsisting of an elongated body-having" a longitudinal slot to adjustably receive a holding bolt, screws extending longitudinally of the support and engaging a block movable in the end ofthe support, a bearing having inclined shoulders engaging oppositely inclined surfaces on'theend of the support and a dovetail rib on the bearing slidably engaging adove-tail' groove in the, block and support.

. ,In testimony whereof I affix my signature :in presence of two witnesses. lVILLIAM E.- ELLIOTT. l Vitnesses HAROLD O. VAN An'rwnnr,

Mae RANKIN. i

same, and a dove-tail-rib on the bearing slid- 

